John Munson/The Star-LedgerRex Ryan said he's "not used to" a defensive performance like last night's and that he isn't sure how to act.

Rex Ryan, sporting bloodshot eyes at his afternoon press conference, admitted that he hadn't yet gone home after his team's 45-3 drubbing by the Patriots last night.

The Jets coach stayed at the team facility after the team returned to New Jersey and broke down tape this morning. He said it affirmed what he knew last night: that his team had been outcoached and outplayed, and got its "butt kicked."

A defensive-minded coach, he was particularly bothered by the porous defensive effort.

"I'm not used to it, quite honestly," he said. "So I don't really know how to act. The only thing I know we're going to do is roll our sleeves up and go and come out fighting. That's the only thing I know how to do. We've got to tackle better. We've got to look at what we're doing, come up with a great game plan for our guys to be successful."

The Jets surrendered 405 yards of total offense to the Patriots. Quarterback Tom Brady completed 21-of-29 passes for 326 yards, four touchdowns and no interceptions.

"You've got to question everything," Ryan said. "The tackling was an obvious one. Schematically it's easy to say, hindsight being what it is, we should have tried everything but what we did."

Ryan said he hadn't yet addressed the team, because this is the players' day off, but had a specific message in mind for tomorrow that he wouldn't share. He said the embarrassment of the nationally televised loss wouldn't be put all on the players, but on the coaches as well.

"Your job as a coach is to put your players in a situation where they can be successful," he said. "(New England) did a better job of that than we did -- than I did."

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Ryan said S James Ihedigbo is having an MRI today on his high ankle sprain and his knee (MCL). The fact that he didn't finish yesterday's game, Ryan said, is not a good sign.

The Jets will look to sign another defensive back, not just because of Ihedigbo's injury but because they lost Jim Leonhard for the season to a fractured tibia. He indicated they have someone in mind who knows the system.

The safety will take the roster spot of Laveranues Coles, the long-time Jets receiver the team brought in for the weekend after Leonhard was placed on injured reserve.

"We lost a Jet, and I wanted to bring a Jet in at that time," Ryan said. "I would have liked to have had LC here. But now we're going to have to let him go because our safety situation is the way it is."

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K Nick Folk opened the game with a missed 53-yard field goal that sailed wide, wide left. Ryan said he had been making them in pre-game warm-ups, and the wind was at their back, which is why they attempted it.

The team brought in veteran Kris Brown for a workout last week, but Ryan said he thinks Folk "will be our guy."

"Maybe that's something I need to look at, is maybe not attempt that kind of kick, his first kick of the day," he said. "Maybe that's something I need to look at."

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The Jets' secondary had several breakdowns. CB Antonio Cromartie gave up two first-half touchdowns, and Ryan said the "biggest disappointment in his play" was his tackling.

On Wes Welker's 18-yard touchdown catch, Drew Coleman appeared to be in one-on-one coverage with him, which Ryan said wasn't the plan.

"No, at that time we had lost James Ihedigbo," Ryan said. "We had some confusion out there. Really in that situation, if you go in cover-zero, I prefer to have (Darrelle) Revis or Cromartie on Welker. We left a guy uncovered. Revis did the smart thing and covered him. We had the other corner on the other side, but that was not what we intended to do."

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Ryan said he wasn't aware of any other injuries. He said RT Damien Woody (knee) is still sore, which is not unexpected.